Today's installment of campaign-related news items that won't necessarily generate a post of their own, but may be of interest to political observers:
* Sen. Lindsey Graham (R-S.C.) formally kicked off his presidential campaign this morning. We'll have more on this a little later today.
* Sen. Marco Rubio's (R-Fla.) campaign confirmed over the weekend that the senator will not participate in the Iowa Straw Poll. He joins Jeb Bush, Lindsey Graham, and Mike Huckabee in skipping the quadrennial event, and that list is likely to grow.
* The latest Bloomberg Politics/Des Moines Register Iowa Poll shows Scott Walker continuing to lead the Republican presidential field in the Hawkeye State, this time with 17% support. Rand Paul and Ben Carson are tied for second in the poll with 10%, followed by Mike Huckabee and Jeb Bush at 9% each.
* Among Democrats, the same Bloomberg Politics/Des Moines Register poll shows Hillary Clinton with 57% support among Iowa Dems, followed by Bernie Sanders with 16% and Vice President Biden with 8%.
* As annoying as it may sound, Jeb Bush continues to pretend that he's not a presidential candidate yet. "I hope I run, to be honest with you," the former Florida governor told CBS yesterday. "I would like to run. But I haven't made the decision."
* Rand Paul used footage from his recent 10-hour Senate floor speech in a new campaign video, apparently in violation of Senate rules.
* The Democratic presidential field will reportedly grow from three to four on Wednesday, when former Gov. Lincoln Chafee of Rhode Island launches his longshot bid.
* And though most recent polling looks pretty good for Sen. Pat Toomey (R) has he seeks re-election in Pennsylvania, the latest PPP survey shows his lead sinking to single digits against some leading Democratic rivals.